Definition Characteristics Chemical Changes Examples Nonexamples Definition Characteristics

Definition Characteristics Chemical Changes Examples Nonexamples

Definition Characteristics Physical Changes Examples Nonexamples

Definition Characteristics A chemical change is the change in the matter that produces new substances. • A gas is produced (you see bubbles) • Change in temperature • Change in odor • Change in color • A solid precipitate is formed when two liquids are combined. Chemical Changes Cooking a cake Steel wool rusting Burning wood Soured milk Mixing baking soda and vinegar • Mixing vinegar and milk. • Mixing cream of tartar, baking soda, and water. • • • Examples • • • Cutting paper Sawing wood Dissolving salt in water Breaking a cracker Molding clay Folding paper Nonexamples

Definition Characteristics • Change in size • Change in shape • Change in state. A physical change in matter that might change the form or appearance of a substance, but does not produce any new substances. Physical Changes • • • Cutting paper Sawing wood Dissolving salt in water Breaking a cracker Molding clay Folding paper Examples Cooking a cake Steel wool rusting Burning wood Soured milk Mixing baking soda and vinegar • Mixing vinegar and milk. • Mixing cream of tartar, baking soda, and water. • • • Nonexamples